The present disclosure is concerned with a skin treatment device having at least a first LED, at least a first controllable current source, in particular a first controllable constant current source, for driving the first LED, a control unit for controlled switching of at least the first controllable current source between a first state in which current is provided to the first LED and a second state in which no current is provided to the first LED, and at least a first current sensor that is connected or connectable with the first LED so that the first current sensor and the first LED form a current path at least in the second state of the first controllable current source.

An apparatus and method is provided for irradiating a portion of a patient's scalp with light. The apparatus includes a source of light including one or more wavelengths in a range of about 630 nanometers to about 1064 nanometers. The apparatus further includes an output optical element in optical communication with the source. The output optical element includes an emission surface configured to emit a light beam having a cross-sectional area greater than about 2 cm.sup.2 at the emission surface of the output optical element and having a time-averaged irradiance in a range of about 10 mW/cm.sup.2 to about 10 W/cm.sup.2 across the cross-sectional area. The apparatus further includes a thermally conductive portion configured to be placed in thermal communication with the irradiated portion of the patient's scalp and to remove heat from the irradiated portion of the patient's scalp at a rate in a range of about 0.1 Watt to about 5 Watts.

Embodiments of the present disclosure provide systems, apparatuses and methods for regulation hormone production in mammals. Examples include but are not limited to by creating electro-magnetic wave emission pulse trains (photons) of individual color spectrums in sufficient intensity to drive hormone production in a mammal, using a characteristic frequency or pattern to minimize the required input power necessary to regulate hormone production, while also allowing for the monitoring of the power consumption and other variables of the system. By controlling the duty cycle, intensity, wavelength band and frequency of photon signals to a mammal, production of specific hormones can be regulated through the cycling between blue, green, yellow, near-red, far-red, infrared and ultra violet photon modulation.

Photobiomodulation therapy systems provide a highly effective way to treat many common ailments to the human body. Light therapy systems may enable two or more light therapy devices to be communicatively coupled together in various ways. The light therapy systems include a first light device and a second light device arranged and configured to be communicatively coupled to the first light device. Each of the light devices may include a housing, a communication module, and a plurality of lights arranged and configured to emit at least one of red light and near infrared light.

Systems and methods of the present disclosure are directed to systems and methods for treating cognitive dysfunction in a subject in need thereof. The system can include a light source and a speaker. A visual neural stimulation system provides, via the light source, visual stimulation having a first value of a first parameter. An auditory neural stimulation system provides, via the speaker, audio stimulation having a second value of the second parameter. A stimuli orchestration component selects, for a first time interval, one of the visual stimulation or the audio stimulation to vary based on a policy, selects, for the first time interval, the other of the visual stimulation or the audio stimulation to keep constant based on the policy, and provides causes the one of the visual neural stimulation system or the auditory neural stimulation system to vary the one of the visual stimulation or the audio stimulation.

Systems and methods of the present disclosure are directed to systems and methods for treating cognitive dysfunction in a subject in need thereof. The system can include a neural stimulation system that receives an indication of an ambient audio signal detected by a microphone. The system selects, from a profile, an audio signal including a fixed parameter and a variable parameter. The system sets the variable parameter to a first value. The system generates an output signal based on the fixed parameter and the first value, and provides the output signal to the speaker. The system measures a physiological condition of the subject, adjusts the variable parameter to a second value, generates a second output signal based on the fixed parameter and the second value of the variable parameter, and provides the output signal to the speaker to cause the speaker to provide modified sound to the subject.

A light display system including a rear panel, a light source, a diffuser, a front panel, and a power supply. The light source is supported by the rear panel. The light source is configured to output light. The diffuser has a first side and a second side. The first side is proximate the light source. The diffuser is configured to diffuse the light outputted by the light source. The front panel is located proximate the second side of the diffuser. The front panel includes a plurality of apertures, with each aperture configured to receive a peg. The power supply is configured to provide power to the light display.

Systems and methods of the present disclosure are directed to systems and methods for treating cognitive dysfunction in a subject in need thereof. The system can include eyeglasses, a photodiode positioned to detect ambient light, light sources, and an input device. The system can include a neural stimulation system that retrieves a profile and selects a light pattern having a fixed parameter and a variable parameter. The neural stimulation system can set a value of the variable parameter of the light pattern, construct an output signal, and then provide the output signal to the light sources to direct light towards the fovea.

A light irradiation device includes a light source unit emitting a light to a wounded are of a skin and a controller controlling the light source unit. The light source unit includes a substrate, at least one first light source disposed on the substrate and emitting a first light in a blue wavelength band, and at least one second light source disposed on the substrate and emitting a second light in a red wavelength band to a near-infrared wavelength band. The first and second lights have different skin penetration depths from each other depending on a wavelength.

A light-emitting device (100) is disclosed. The light-emitting device (100) comprises a plurality of light-emitting elements (135) or light sources and a power module (120) adapted to selectively convey, supply or provide electrical power to the light-emitting elements (135). The power module (120) may be dimensioned such as to be able to power only a proper subset of the light-emitting elements (135) of the light-emitting device (100) at a given time, the subset having a maximum number of light-emitting elements (135) included therein with respect to the number of light-emitting elements (135) included in the all subsets of the light-emitting elements (135) of the light-emitting device (100). The plurality of sets of light-emitting elements (135) may be arranged so as to emit light over a light emission area, and the plurality of sets of light-emitting elements (135) may be arranged relatively to each other such that different sets of light-emitting elements (135) emit light over different portions of the light emission area.